Uncharted 2 multiplayer, beta confirmed - GameSpot

Naughty Dog's story-driven action adventure picks up co-op, competitive modes for fall launch on PS3; beta key packed in with Infamous purchase.
Nathan Drake returns for some more tomb raiding in the sequel to Naughty Dog and Sony's 2007 archaeological action adventure hit.

Uncharted 2: Among Thieves - GameSpot

Uncharted 4 Multiplayer Beta Kicks Off December 4, See It Action Now - Game Informer

New Details and Images Emerge From Uncharted 4 Multiplayer Beta, Due to Go Live December 4

News - May, 2010

Uncharted 2 Multiplayer Beta Hands-On - GameSpot

Performance Analysis: Uncharted 4 multiplayer beta

Uncharted 4 Multiplayer Won't Have Split-Screen at Launch

Uncharted 2: Among Thieves Video Review by GameSpot

A look at the 'Uncharted 4' multiplayer beta – The Morning Sun

Uncharted 2: Among Thieves Video Review by GameSpot

Xboxygen : Halo Infinite demo was running on PC, confirms 343i

Uncharted 2: Among Thieves Online Multiplayer Officially Confirmed By Sony - GameGuru

Uncharted 2: Among Thieves Video Review by GameSpot